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Formation of SVT multicompartment microparticles. (a) Chemical structure of polystyrene-b-poly(4-vinylpyridine)-b-poly(tert-butyl methacrylate) (PS-b-P4VP-b-PT or SVT). (b) Solution of SVT in CHCl3 followed by emulsification in water/CTAB, and evaporation of CHCl3. (c) Solid microparticles of SVT with inner morphology, shown here with concentric lamella–sphere (ls) morphology. Inset shows arrangement of polymer chains.
